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<span class='curline'><a href='../S/src--subshell--common.c.html#L476'>sigchld_mask</a>      476 src/subshell/common.c     sigset_t sigchld_mask, old_mask;</span>
<span class='curline'><a href='../S/src--subshell--common.c.html#L478'>sigchld_mask</a>      478 src/subshell/common.c     sigemptyset (&amp;sigchld_mask);</span>
<span class='curline'><a href='../S/src--subshell--common.c.html#L479'>sigchld_mask</a>      479 src/subshell/common.c     sigaddset (&amp;sigchld_mask, SIGCHLD);</span>
<span class='curline'><a href='../S/src--subshell--common.c.html#L480'>sigchld_mask</a>      480 src/subshell/common.c     sigprocmask (SIG_BLOCK, &amp;sigchld_mask, &amp;old_mask);</span>
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